Keyphrases
Mannan-oligosaccharide
100%
Nitrogen Fixation
100%
Phosphorus Limitation
100%
Biological Nitrogen Fixation
80%
Molybdenum
80%
Acetylene Reduction Assay
60%
Subarctic Tundra
40%
15N2
40%
N2 Fixation
40%
Cyanobacterial Biomass
40%
Tracer Technique
20%
Cyanobacteria
20%
Conversion Ratio
20%
Boreal Forest
20%
Field Plot
20%
P Addition
20%
Phosphorus P
20%
Forest Plot
20%
P-limited
20%
Nitrogenase Activity
20%
New Nitrogen
20%
Subarctic
20%
Mountain Ecosystems
20%
Feather Moss
20%
Laboratory Microcosm
20%
Ecosystem Function
20%
Growing Season
20%
Positive Responses
20%
Spruce Forest
20%
Agricultural and Biological Sciences
Nitrogen Fixation
100%
Biological Nitrogen Fixation
100%
Nitrogen Assimilation
100%
Nitrogenase
25%
Growing Season
25%
Field Plots
25%
Cyanobacteria
25%
Feather
25%
Boreal Forest
25%
Tracer Techniques
25%
Immunology and Microbiology
Nitrogen Fixation
100%
Cyanobacteria
20%
Spruce
20%